IP assignment for virtual webhosting

> why do you use an own POP3 and FTP for each customer/domain????
> We are using the same POP3/FTP/SMTP for all customers. Of course you need
> individual Logins, you can solve this by naming them CUSTOMERNR-1, -2 and
> so on or by using DOMAINNAME-1, DOMAINNAME--2 and so on. For ftp, we do a
> CHROOT in the customers Webroot (=his home-dir).
> So where is the problem??

We are also using one singel pop3 and smtp server for all customers, and
also use the CHROOT solution for FTP accounts on un*x servers, however other
FTP servers on other platforms (don't want to start an OS war here, but some
of us do use IIS on NT for FTP :)) do not always support this mechanism.
Has anyone solved this on NT? Perhaps by using different FTP server
software?

And I agree with Daniel that accounting is a very important issue here.
Security is another one, firewalls being configured based on source and
destination IP addresses.


kind regards,
Herbert

--
Herbert Baerten                         HB5351
HostIT Network Manager            NCC9166-RIPE